Monotremata

n. pl.

1.

(Zool.) A subclass of Mammalia, having a cloaca in which the ducts of the urinary, genital, and alimentary systems terminate, as in birds. The female lays eggs like a bird. See Duck mole, under Duck, and Echidna.

Noun

1.

Monotremata - coextensive with the subclass Prototheria Synonyms: order Monotremata

animal order, family Ornithorhynchidae, family Tachyglossidae, order Monotremata, Ornithorhynchidae, Prototheria, subclass Prototheria, Tachyglossidae